Over the past year, we've featured gobs of great desktops submitted by our readers to the Lifehacker Desktop Show and Tell group on Flickr. In the process, we've seen beautiful desktop transformations that have ranged in difficulty from a few simple tweaks to extreme desktop makeovers that transcend operating systems. Let's take a look back at the most popular reader-submitted desktops of 2008 and bask in the glow of their customizing prowess.

NOTE: Click the image for larger pictures of each desktop and the original description, complete with more details on how each desktop was accomplished.